Home / 3,202.78-4,420.67-2,086.78

Finding the Fourth Proportional to 3,202.78, 4,420.67 and 2,086.78

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Solution

The fourth proportional to 3,202.78, 4,420.67 and 2,086.78 is: 2,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202.78 : 4,420.67 = 2,086.78 : x
  2. Step 2: Convert to fraction form
    3,202.78/4,420.67 = 2,086.78/x
  3. Step 3: Cross multiply
    3,202.78x = 4,420.67 × 2,086.78
  4. Step 4: Simplify right side
    3,202.78x = 9,224,933.21
  5. Step 5: Solve for x
    x = 9,224,933.21/3,202.78
  6. Step 6: Final answer
    x = 2,880.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.